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Quick hunt in the Main Street Formation of northern Texas
Aidan Campos posted a topic in Fossil Hunting Trips
A short compilation of a quick jaunt into some lower Main Street Limestone (Upper Albian) exposures while doing botany work (my main focus) in the adjacent uplands yesterday, October 3rd. This creek bed exposes the lowermost ammonite zone of the Main Street, the Mortoniceras rostratum Zone (per Kennedy et al., 2005) Some of the abundant index fossil for this zone, the widespread Mortoniceras rostratum. Though most of these specimens are obscured by limestone matrix, all have at least the basal remnants of the characteristic rostrum of this species: Next, a nice small Peilina quadriplicata oyster with both valves preserved. This specimen is quite weathered in comparison to past material of P. quadriplicata I’ve collected but this species is always a pleasure to find: From a bit higher in the formation, a small but dense death assemblage block containing Neithea texana, Neithea wrighti, many Plicatula, abundant Cribratina texana forams, and various other things to be examined under magnification later: Lastly, a wonderful Symphyotrichum oblongifolium growing on the surrounding limestone slope barrens:- 4 replies
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- main street
- mainstreet limestone
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Upper valve only. The genus of this has used several genera. Currently Peilinia is accepted (Kues, 1997) it has also been Ostrea and Lopha in several publications.
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- bivalve
- cretaceous
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From the album: Grayson Co. Texas finds
Various urchins that I have found. Grayson co. Texas found in a creek that runs right through the middle of town in Denison, Grayson co. Tx. I think that this creek is in the Pawpaw formation, but could be Main Street or Duck Creek?-
- duck creek
- echinoids
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